73 duster brake question

I guess maybe I should specify my exact needs... my car as is.. stops just fine.. manual discs with rear drums.. I do have to apply a lot of pressure with my foot to slow it down, I'm a 230lb rugby player, leg strength is no issue at all. I have a bench seat in the car and when I need to push on the brakes the person next to me feels it to. I was thinking power brake booster would take the load off the amount of pressure needed to
Push the brakes, not necessarily make the car stop faster. If I'm wrong please tell me, I'm not offended by criticism. I have slotted rotors and I'm running 17' rims already so having the room isn't an issue either. As far as vacuum goes, I have a full electronic ignition, and I'm using fuel injection. Everything is controlled electronically so I have very little draw from vacuum as it is. My question is.. will using a vacuum brake booster/master combo take the amount of necessary pressure down, and what parts are needed to do so... thank you guys for your time